Anomalous spin-orbit coupling in high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well

K. H. Gao; T. Lin; L. M. Wei; X. Z. Liu; X. Chen; G. Yu; Y. Gu; Y. G. Zhang; N. Dai; J. H. Chu

doi:10.1016/j.ssc.2012.03.023

Anomalous spin-orbit coupling in high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well

K. H. Gao^*
, T. Lin
, L. M. Wei
, X. Z. Liu
, X. Chen
, G. Yu
, Y. Gu
, Y. G. Zhang
, N. Dai
, J. H. Chu

^*Corresponding author for this work

School of Physics and Electronic Science

East China Normal University
CAS - Shanghai Institute of Technical Physics
CAS - Shanghai Institute of Microsystem and Information Technology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We study the magnetotransport property of a high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well. Both beating pattern in the Shubnikov-de Hass oscillation of resistivity and weak antilocalization effect are observed. From these two effects, Rashba spin-splitting energy is extracted. The extracted Rashba spin-splitting energy shows a nonmonotonic dependence on Fermi wave vector, contrary to the prevailing linear Rashba model. This anomalous behavior can be attributed to the nonlinear Rashba spin-splitting mechanism [Yang et al., Phys. Rev. B 74 (2006) 193314].

Original language	English
Pages (from-to)	1042-1046
Number of pages	5
Journal	Solid State Communications
Volume	152
Issue number	12
DOIs	https://doi.org/10.1016/j.ssc.2012.03.023
State	Published - Jun 2012

Keywords

A. InGaAs/InAlAs quantum well
D. Rashba spin splitting
D. Spin-orbit coupling

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10.1016/j.ssc.2012.03.023

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@article{1edcd68cf3bd4cee8d000edafec2f7d9,

title = "Anomalous spin-orbit coupling in high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well",

abstract = "We study the magnetotransport property of a high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well. Both beating pattern in the Shubnikov-de Hass oscillation of resistivity and weak antilocalization effect are observed. From these two effects, Rashba spin-splitting energy is extracted. The extracted Rashba spin-splitting energy shows a nonmonotonic dependence on Fermi wave vector, contrary to the prevailing linear Rashba model. This anomalous behavior can be attributed to the nonlinear Rashba spin-splitting mechanism [Yang et al., Phys. Rev. B 74 (2006) 193314].",

keywords = "A. InGaAs/InAlAs quantum well, D. Rashba spin splitting, D. Spin-orbit coupling",

author = "Gao, \{K. H.\} and T. Lin and Wei, \{L. M.\} and Liu, \{X. Z.\} and X. Chen and G. Yu and Y. Gu and Zhang, \{Y. G.\} and N. Dai and Chu, \{J. H.\}",

year = "2012",

month = jun,

doi = "10.1016/j.ssc.2012.03.023",

language = "英语",

volume = "152",

pages = "1042--1046",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

number = "12",

}

TY - JOUR

T1 - Anomalous spin-orbit coupling in high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well

AU - Gao, K. H.

AU - Lin, T.

AU - Wei, L. M.

AU - Liu, X. Z.

AU - Chen, X.

AU - Yu, G.

AU - Gu, Y.

AU - Zhang, Y. G.

AU - Dai, N.

AU - Chu, J. H.

PY - 2012/6

Y1 - 2012/6

N2 - We study the magnetotransport property of a high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well. Both beating pattern in the Shubnikov-de Hass oscillation of resistivity and weak antilocalization effect are observed. From these two effects, Rashba spin-splitting energy is extracted. The extracted Rashba spin-splitting energy shows a nonmonotonic dependence on Fermi wave vector, contrary to the prevailing linear Rashba model. This anomalous behavior can be attributed to the nonlinear Rashba spin-splitting mechanism [Yang et al., Phys. Rev. B 74 (2006) 193314].

AB - We study the magnetotransport property of a high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well. Both beating pattern in the Shubnikov-de Hass oscillation of resistivity and weak antilocalization effect are observed. From these two effects, Rashba spin-splitting energy is extracted. The extracted Rashba spin-splitting energy shows a nonmonotonic dependence on Fermi wave vector, contrary to the prevailing linear Rashba model. This anomalous behavior can be attributed to the nonlinear Rashba spin-splitting mechanism [Yang et al., Phys. Rev. B 74 (2006) 193314].

KW - A. InGaAs/InAlAs quantum well

KW - D. Rashba spin splitting

KW - D. Spin-orbit coupling

UR - https://www.scopus.com/pages/publications/84860769571

U2 - 10.1016/j.ssc.2012.03.023

DO - 10.1016/j.ssc.2012.03.023

M3 - 文章

AN - SCOPUS:84860769571

SN - 0038-1098

VL - 152

SP - 1042

EP - 1046

JO - Solid State Communications

JF - Solid State Communications

IS - 12

ER -

Anomalous spin-orbit coupling in high-density two-dimensional electron gas confined in InGaAs/InAlAs quantum well

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Keywords

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